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/* This file is part of the KDE project
* Copyright (C) 2007 Thomas Zander <zander@kde.org>
* Copyright (C) 2009 Casper Boemann <cbo@boemann.dk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "FormattingButton.h"
#include <QMenu>
#include <QFrame>
#include <QGridLayout>
#include <QWidgetAction>
#include <kdebug.h>
//This class is the main place where the expanding grid is done
class ItemChooserAction : public QWidgetAction
{
public:
ItemChooserAction(int columns);
QWidget *m_widget;
QGridLayout *m_containerLayout;
int m_cnt;
int m_columns;
QToolButton *addItem(QPixmap pm);
void updateItem(QObject *button, QPixmap pm);
};
ItemChooserAction::ItemChooserAction(int columns)
: QWidgetAction(0)
, m_cnt(0)
, m_columns(columns)
{
m_widget = new QWidget;
m_containerLayout = new QGridLayout();
m_containerLayout->setSpacing(6);
m_widget->setLayout(m_containerLayout);
setDefaultWidget(m_widget);
m_widget->setBackgroundRole(QPalette::Base);
}
QToolButton *ItemChooserAction::addItem(QPixmap pm)
{
QToolButton *b = new QToolButton();
b->setIcon(QIcon(pm));
b->setIconSize(pm.size());
b->setAutoRaise(true);
m_containerLayout->addWidget(b, m_cnt / m_columns, m_cnt % m_columns);
++m_cnt;
return b;
}
void ItemChooserAction::updateItem(QObject *button, QPixmap pm)
{
if (dynamic_cast<QToolButton *> (button)) {
dynamic_cast<QToolButton *> (button)->setIcon(QIcon(pm));
dynamic_cast<QToolButton *> (button)->setIconSize(pm.size());
}
}
FormattingButton::FormattingButton(QWidget *parent)
: QToolButton(parent)
, m_lastId(0)
, m_styleAction(0)
, m_columns(1)
, m_menuShownFirstTime(true)
{
m_menu = new QMenu();
setPopupMode(MenuButtonPopup);
setMenu(m_menu);
connect(this, SIGNAL(released()), this, SLOT(itemSelected()));
connect(m_menu, SIGNAL(aboutToHide()), this, SIGNAL(doneWithFocus()));
connect(m_menu, SIGNAL(aboutToShow()), this, SIGNAL(aboutToShowMenu()));
connect(m_menu, SIGNAL(aboutToHide()), this, SLOT(menuShown()));
}
void FormattingButton::setNumColumns(int columns)
{
m_columns = columns;
}
void FormattingButton::addItem(QPixmap pm, int id)
{
//Note: Do not 0 as the item id, because that will break the m_lastId functionality
Q_ASSERT(id != 0);
if(m_styleAction == 0) {
m_styleAction = new ItemChooserAction(m_columns);
m_menu->addAction(m_styleAction);
}
if (m_styleMap.contains(id)) {
m_styleAction->updateItem(m_styleMap.value(id), pm);
} else {
QToolButton *b = m_styleAction->addItem(pm);
m_styleMap.insert(id, b);
connect(b, SIGNAL(released()), this, SLOT(itemSelected()));
}
if (!m_lastId) {
m_lastId = id;
}
}
void FormattingButton::addAction(QAction *action)
{
m_menu->addAction(action);
}
void FormattingButton::addSeparator()
{
m_menu->addSeparator();
}
void FormattingButton::itemSelected()
{
if (sender() != this && m_styleMap.key(sender()) == 0) {
// this means that the sender() is not in the m_styleMap. Have you missed something?
return;
}
if (sender() == this && m_lastId == 0) {
//menu not yet populated
return;
}
if(sender() != this) {
m_lastId = m_styleMap.key(sender());
}
m_menu->hide();
emit itemTriggered(m_lastId);
}
bool FormattingButton::hasItemId(int id)
{
return m_styleMap.contains(id);
}
void FormattingButton::menuShown()
{
m_menuShownFirstTime = false;
}
bool FormattingButton::isFirstTimeMenuShown()
{
return m_menuShownFirstTime;
}
#include <FormattingButton.moc>
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